Transactions not sent

Hello, sorry because this text is a translation from Spanish to English.
With the congestion problems of the BSC network, I have had several transactions sent without executing for more than 24 hours from the MetaMask app on my mobile.
I have managed to cancel the most recent ones, but the previous ones not after many attempts.
And I suspect that because of that I cannot continue to operate. I have raised the gas a lot and I have not been successful either.
I am KO and would appreciate your help.